Hitachi, Ltd.

Hitachi Microcomputer System, Ltd.

Other

Renesas Technology Corp.

Hitachi Vlsi Engineering Corp.

Hitachi Engineering Co., Ltd.

Hitachi Ulsi Engineering Corp.

Renesas Electronics Corporation

Hitachi Automotive Engineering Co., Ltd.

Mitsuru Watabe

Koyo Katsura

Yasushi Akao

Kouki Noguchi

Shumpei Kawasaki

Shigeki Masumura

Yugo Kashiwagi

Kaoru Fukada

Eiji Sakakibara

Takashi Miyamoto

Shigeki Morinaga

Jun Satoh

Keisuke Nakashima

Kazushige Yamagishi

Kenichiroh Ohmura

Nobuyasu Kanekawa

Shiro Baba

Keiichi Kurakazu

Takanaga Yamazaki

Toshimasa Kihara

Takashi Tsukamoto

Masahiro Kainaga

Katsuhiko Ishida

Yoichi Asano

Yasuhiro Tawara

Shuya Fujita

Noriko Sawa

Hideaki Chaki

Tadahiko Sugawara

Kohei Sakurai

Shoji Sasaki

Minoru Ohsuga

Masatoshi Hoshino

Hiroyuki Kida

Mamoru Ohba

Norio Nakagawa

Junichi Tatezaki

Hisashi Kaziwara

Takeshi Asai

Rika Minami

Kiyoshi Matsubara

Sanshiro Obara

Fumio Murabayashi

Katsuji Marumoto

Kazufumi Suzukawa

Tetsuaki Nakamikawa

Masahisa Narita

Ryozo Masaki

Toshio Hayashibara

Shunpei Kawasaki

Isamu Mochizuki

Koichi A Ono

Mitsuo Kayano

Yutaka Nishimura

Hiroshi Katayama

Junichi Ishii

Atsushi Kanke

Kenji Tabuchi

Katsuya Oyama

Noriyoshi Urushiwara

Yasuyuki Sugiura

Hideaki Ishikawa

Tsugio Tomita

Syuuichi Nakano

Tetsuya Ichihashi

Satoshi Tanaka

Hiroshi Kimura

Kunio Miyashita

Kentaro Yoshimura

Takanori Yokoyama

Kunihiko Tsunedomi

Hiromasa Yamaoka

Hiroshi Sugai

Rika Oue

Kenichiro Omura

Kohei c/o Hitachi Ltd Sakurai

Fumio c/o Hitachi Ltd Murabayashi

A data processor comprising: a bus control circuit adapted to be interfaced with a synchronous DRAM which can be accessed in synchronism with a clock signal; a plurality of data processing modules coupled to said bus control circuit for producing data and addresses for accessing a memory; and a clock driver for feeding intrinsic operation clocks to said data processing modules and for feeding the clock signal for accessing said memory in synchronism with the operations of said data processing modules to be operated by the operation clock signals, to the outside.

Data processing system and image processing system

A serial communication interface (SCI) cableis provided between the slave processorand the master processor. Both processors are connected with a communication interface for peripheral units (SPI: Serial Peripheral Interface) which enables fast transmission. The slave processortransmits a transmission request command which requests at least one of data transmission and reception from the command communication sectionto the master processorthrough the SCI cable. The master processortransfers data to and from the slave processorin communication with the slave processorby means of the data communication sectionthrough the fast SPI cablein response to a transmission request command sent from the slave processor With this, the processing ability of a multi-processor system can be increased.

Multi-processor system

An electrical control unit for an automobile of which standby current is smaller. In an electrical control unit for an automobile having a microcomputer, an input circuit, a driver circuit, and a power supply circuit, which is started by a wake-up signal from the circuit other than the ignition switch even when the ignition switch of the automobile is cut off, the microcomputer is started by shifting the power supply circuit from an inert state to an active state to generate the voltage for operating the microcomputer, and the predetermined processing is executed.

Electrical control unit for an automobile

An engine electronic control unit is inserted through a through hole provided in an intake pipe and mounted in an intake air passage in a direction substantially perpendicularly with respect to a plane of the intake pipe forming the intake air passage. This unit is then secured to the intake pipe using a fixing flange provided at a connector portion. A fixing rail is protruded inside the intake pipe and leading edges of a metal base and a metal cover of the unit are inserted into this rail, thereby securing in position an end opposite to a side of the connector portion of the unit. This realizes an engine electronic control unit offering an outstanding heat radiation performance and vibration resistance, without having to provide special heat radiating parts or without involving an increase in an intake air resistance within the intake air passage. By using such an engine electronic control unit, it is possible to provide a low-cost, compact engine air intake system.

Control circuit module, intake air passage body, engine electronic control device, and engine air intake system provided with the same

A low-cost vehicle control system and a car using the system controls radiation of an actuator driver and thereby reduces the radiation component cost and allows downsizing of an electronic control unit to improve the versatility. The vehicle control system has an electronic control unit, a plurality of actuators and actuator drivers for driving the actuators at the actuator side. The actuator drivers, respectively, have an independent self-diagnosis section, a self-protection section, and a communication control section and are dispersed correspondingly to the actuators.

Vehicle control system and automobile using the same

An engine electronic control unit is inserted through a through hole provided in an intake pipe and mounted in an intake air passage in a direction substantially perpendicularly with respect to a plane of the intake pipe forming the intake air passage. This unit is then secured to the intake pipe using a fixing flange provided at a connector portion. A fixing rail is protruded inside the intake pipe and leading edges of a metal base and a metal cover of the unit are inserted into this rail, thereby securing in position an end opposite to a side of the connector portion of the unit.

A low-cost vehicle control system and a car using the system controls radiation of an actuator driver and thereby reduces the radiation component cost and allows downsizing of an electronic control unit to improve the versatility. The vehicle control system has an electronic control unit, a plurality of actuators and actuator drivers for driving the actuators at the actuator side. The actuator drivers, respectively, have a independent self-diagnosis section, a self-protection section, and a communication control section and are dispersed correspondingly to the actuators.

Herein disclosed is a microcomputer MCU adopting the general purpose register method. The microcomputer is enabled to have a small program capacity or a high program memory using efficiency and a low system cost, while enjoying the advantage of simplification of the instruction decoding as in the RISC machine having a fixed length instruction format of the prior art, by adopting a fixed length instruction format having a power of 2 but a smaller bit number than that of the maximum data word length fed to instruction execution means. And, the control of the coded division is executed by noting the code bits.

Microcomputer and dividing circuit

Data processing system having memory including mode register

To reduce the hardware of the graphics computer in size and reduce the cost of the hardware, the frame buffer and the main memory are united into one unit to process graphics data in the CPU. The frame buffer is arranged in the main memory, and the graphics computer includes a DMAC used to read pixel data from the frame buffer for display, a display used to receive the pixel data and display it on a display device, such as an LCD, etc., and memories used to store the procedure used by the CPU to draw the pixel data in the said frame buffer. Especially, the said memories are formed so that a single function procedure and 2 multifunction procedure can be selected to suit the drawing object. In addition, the single function procedure includes 2 line drawing procedure that uses data tables and 2 multivalue expansion procedure that uses a pattern table and a mask table. Since the frame buffer and the main memory are united into one unit, the CPU can be used to process graphics data. Thus, the graphics computer hardware is reduced in size and the cost of the hardware is reduced.

Graphics computer

A semiconductor device comprises an embedded insulation layer formed on a semiconductor substrate plural power semiconductor elements formed on a semiconductor substrate on the embedded insulation layer, a trench formed on the semiconductor substrate and isolating between the power semiconductor elements, and an isolator insulating and driving control electrodes of the power semiconductor elements, and the power semiconductor elements such as transistors can be used, being connected each other in series.

Semiconductor device with scalable withstanding voltage

Growing community of inventors

Urizura-machi, Japan

Mitsuru Watabe